It'd be interesting to see if you get better results with Global Print Options / General / Print As Image.  Theoretically that is not as performant, but in reality i'm not sure if you'll notice. Do you mind trying and reporting back?

Currently we're working with the vendor we rely on to try to reproduce in a fashion that will lead to resolution.  Unfortunately.. it takes time. I'm sorry to say I'm not optimistic on resolution within the next few months.